Mark Mcgwire 

It's where you teabag someone with your ass near their nose and fart into their nostrils, causing them to spit your balls into the air

Man, when I gave Lucy the ol' Mark Mcgwire, I thought mark himself whacked my balls into the air!!!

Mark Mcgwire by E FeAzY August 27, 2007

McGuired 

Being so high that a person acts like a dinosaur, usually a stegosaurus. Usually will indicate a severe mental problem. Sometimes the McGuired will also ramble on about nothing, and make some of the stupidest remarks ever made.

Relates to how stegosauruses were so stupid they would run off cliffs in such massive numbers that their corpses would make a slope that could be used to go down the cliff safely. Yet most stegosauruses still jumped off the cliff. Stegosauruses are one of the stupidest creatures ever, dieing at a rate of 30% total population a year. Only 5 true stegosauruses remain today.

Also relates to Dr. Brandon R. McGuire who argued that stegosauruses primary source of food was marijuana which lead to them having a walnut sized brain.

"He's so McGuired that his tail is showing"

McGuired by StegoMaster October 27, 2009

Maguire 

A male who is tall, lanky, wears glasses and has a bald head.

"Shut up you Maguire"

Maguire by The one & only TBM May 17, 2006

jizzy mcquire 

A masterbation technique that alows one to use his previous load as lubricant for his second jerk.

After catching his mess in his right hand, Zach used his lil swimmers as lubricant in his second jerk, which was the infamous jizzy mcquire.

jizzy mcquire by mikesegy September 26, 2008

Harry Maguire 

Manchester united keeper, David de gea worst fear.
Harry maguire has never learnt how to play actual football and often ends up attacking his own side of the field.
He is knonw for just 20 own goals in just 3 seasons at man united.
Often owns the song Gangsters paradise.

Harry maguire lost to a 5 year old at football .
He scored all the goals which were own goals.

Harry Maguire by Shadowbalde 710 July 16, 2023

Shafty Maguire 

Best fucking band ever

I listened to a Shafty Maguire song today. It owned.

Shafty Maguire by Exthuse February 13, 2005

McGuines 

A terrible group of people usually formed together to cause havoc among others. The leader of the group doesn’t know what he is doing. Very confused

Hey look there is the McGuines group let’s go in the opposite direction as them

McGuines by Joshua Franks February 2, 2020